Window



May 26,1931.

G. AI LUNZ ET AL WINDOW "Filed Sept. 17, 1928 2 Sheets-Sheet -1 May 26, 1931.

G. A. LUNZ' ET AL WINDOW Filed Sept. 1 7, 1925 2 Sheets-Sheet 2 Patented May 26, 1931 GEORGE A. LUNZ AND J'QHN L. FEYYL, 01E BUFFALO, .YOBK

WINDOW Application filed. September 17, 1928. Serial No. 306,480.

This invention relates to certain novel im: provements in window construction and. more particularly tov a foldable window-sash- One of its objects-to the provision of a,

[6' window construction of thischaracter wheli i by the sash is cap able of both averticailysliding movement in the frame and a verticallyswinging movement inwardly into the room for ventilating aswell as cleaning purposes.

Another object of the inventio is t o n struct the relatively movable par s o th sash that they will be tight and weatherproof folding-sash from. its stiles orrunners.

A further object is to provide means for readilyeffecting the. complete removal of the folding sash from its. stiles of runners,

Other features of the invention reside in the construction and; arrangement of parts hereinafter described and particularly pointed out in the appended claims.

In the, accompanying drawings Figure l is a fragmentary inside face view of a window constructed in accordance with our invention. Figure 2 is a fragmentary end view of a window fra me showing the foldable sash partially swung inwardly. Figuresfi and 1 are enlarged horizontal sections on the correspondingly numbered lines in Figure 1. Figuresb and-6 are per- Spective iews o the mpani l ing elements of thegsash, Figures 7 and '8 are perspective views of the companion latching elements of the sash. Figure 9 is a perspective viewfof one of the stiles or runners of the Sash. Figure 10 is a fragmentary perspeo tive View of the sash, Figure 11 is a perspective view of one of the fulcrum pins for the sash.

Similar characters of reference indicate corresponding parts throughout the several views.

Referring now to the drawings, 10 indicates a window frame of ordinary construction, 11 and 12 the upper and lower sash, respectively, 13 the parting strip, and 14;, 15 the upright side groov on e the s de of the parting strip in which the sash are gu ded during heir ais g nd l ring m ve en s- Each sash is joined at itsopposite sides to sliding stiles or runner strips 16 so as to move vertically therewith in the window frame or to swing about a horizontal pivot relative thereto. These. stiles, which form side continuations of the sash, are preferably jointed thereto by a rabbet joint, the stiles being guided directly in the frame grooves 14: or 15 and being connected by suspension cordsl? with the usual counterbalancing sash Weights (not shown).

h m ans r r t y n e e th sash to its companion stiles preferably con sist of plates18, 19 secured byscrews 2001 other appropriate fastenings to the opposing inside rabbet-joint faces of-the sash andstiles, respectively. As shown in Figures},- 9 and 10, the sash-plate 18 carries a horizontal swivel. fulcrum pin 21 having a rec: tangularly-shaped shank 22 projectingthere+ from and engaging a correspondingly-shaped opening'23 formed in the companion stileplate 19, the portion of the. stile immediately opposite the opening being mortised out indicated at 2 1 to receive the shank of the fulcrum pin. In the assembled position of the parts, the fulcrum pin is held in place by a clamping screw 25 passingfthrough, the stile and engaging a threaded opening 26 in the shank of said pin. As shown in Figures 1 and 10, the sash-plate 18 is free to turn on the circular collar 27 of the fulcrum pin.

Means are provided at the upperend of "the sash for detachably coupling the sash to the stiles to produce a unitary structure, These means preferably "consist of coupling plates 28 and 29 secured by screws to thead} joining faces of the sash and stiles, respectively, the sash-plate 28 having an outwardly-facing ear or flange 30' which overlaps the. adjoining inside face of the rabbet joint and is provided with an opening 3 l therein, as shown in Figure 10. The companionplate 29 is angle-shaped in cross section and em} braces the inside face of the-stile and the adjoining portion of its joint face, as seen in Figure 9. That portion of this plate overlying the joint face of the stile containsfa raised central portion 32having an opening 33 therein disposed in horizontal alinement with the companion opening 31 of'the' plate 28, while the adjoining portion ,of the plate 29 overlying the inside face of the stile contains an opening 34 which is located substantially at the corner of said plate opposite its raised central portion 32. In the normal coupled position of the sash to its stiles, the car 30 of the plate 28 is adapted to engage the opening 34 of the plate 29, in which position the openings 31, 33 are in horizontal alinement for receiving a spring-pressed locking bolt 35 mounted in the sash, as shown in Figure 3. By this construction the sash is not only firmly locked to its companion stiles, but these parts are reliably interlocked with one another to prevent their rattling.

In order to prevent the sliding stiles 16 from tipping or falling inwardly when the sash has been swung into the room for cleaning or ventilating purposes, each stile is provided at its outer edge with an upright strip 36 which faces outwardly and bears fiatwise against a companion strip 37 secured to the parting strip 13, as shown in Figure 4, the strip 37 being spaced from the adjoining wall of the window frame to enable the stilestrip 36 to ride between these parts during the raising and lowering movements of the sash. The strips 36 and 37 also provide a weather strip joint between the stiles and the window frame. As shown in Figure a, the inside face of the stile-strip 36 is exposed for engagement with the strip 37 by cutting a longitudinal groove 38 in the adjoining portion of the stile.

In addition to these functions, the arrangement of the strips 36, 37 is such that they constitute guides for the sash, the contiguous or overlapping portions of the strips being in sliding relation and the adjoining outer edges of the stiles 16 being clear of engagement with the bottoms of the guide rooves 14, whereby binding of the sash in the framegrooves is eliminated, the only sliding bearing faces provided being those afforded by the strips. Aside from these advantages, this combined weather strip and guide also prevents sticking or rattling of the sash in the frame, as an appreciable clearance may be left between the side edges of the stiles and the bottoms of their guide grooves, one set of strips at one side of the sash resisting its movement in one direction and the other set resisting its movement in the opposite direction. Furthermore, the overlapping of the strips 36, 37 transversely of the window frame makes it possible to insert the sash laterally by simply removing the respective stop member and enables the strips to extend the full length of the window.

Applied to the opposing outside portions of the rabbet-jointed faces of the sash and stile are weather strips 39 and 40 respective ly, which extend to full length of these parts. As shown in Figures 4, 9 and 10, the weather strip 39 on the sash is slightly bent away from the joint face of the sash to enter a corresponding groove 41 formed by bending the weather strip 40 of the stile inwardly upon itself. This construction, while affording a reliable weatherproof joint between the sash and the stile, permits the weather strip 39, 4C0 to readily become engaged and disengaged from each other during the swinging movements of the sash into and out of its normal position. F urthermore, these weather strips aid materially by their interlocking action to prevent rattling of the sash and stile relative to the frame.

WVe claim as our invention l. A window of the character described, comprising a frame, stiles guided for Vertical movement in the opposite sides of said frame, a sash pivotally connected at its lower end to said stiles, coupling elements applied to the adjoining faces of thesash and the stiles and having parts arranged to interfit with each other in the normal closed position of the sash, said parts having alining openings therein, and a locking bolt applied to the sash and arranged to engage said openings for holding the sash in such position.

2. A Window of the character described, comprising a frame, stiles guided for vertical movement in the opposite sides of said frame, a sash pivotally connected at its lower end to said stiles, coupling elements applied to the upper ends of the sash and the stiles and having laterally-engageable parts overlying the opposing joint faces of said sash and said stiles, said parts having alining openings therein, and a locking bolt applied to the sash for engagement with said openings in the normally closed position of the sash.

3. A window of the character described, comprising a frame, stiles guided for vertical movement in the opposite sides of said frame, a sash pivotally connected at its lower end to said stiles, coupling elements applied to the upper ends of the sash and stiles, one of said elements including a plate having two openings therein arranged at substantially right angles to each other and the other element including a plate having a flange projecting therefrom adapted for engagement with one of said first-named plate openings, the flange of said second-named plate having an opening therein adapted to register with the other opening of the first-named plate in the normal closed position of the sash, and a locking member engageable with said registering openings for holding the sash in such position.

4. A window of the character described, comprising frame, stiles guided for vertical movement in the opposite sides of said frame, a sash pivotally connected at its lower end to said stiles, coupling elements secured to the adjoining faces of the sash and having parts including a flange and an opening, respectively arranged to interlock with each other in the normal closed position of the sash, and

i to

means functioning as a combined weatherproof joint and a holding means for preventing the stiles falling inwardly when the sash is swung inwardly, consisting of upright strips disposed in overlying relation in the direction of the width of the sash and applied to the outer edges of the stiles and the adjoining portions of the window frame, the stile-strip being laterally disposed between the companion strip and the window frame.

5. A window of the character described, comprising a frame including a parting strip, stiles guided for vertical movement in the opposite sides of the frame alongside the parting strip, a sash pivotally connected at one end to said stiles, means at the other end of the sash for detachably interlocking it to the stiles, each stile being provided in that corner-edge thereof facing the parting strip with an upright groove, a weather strip applied to the outer edge of each stile transversely thereof and extending over the contiguous open side of said groove, and a corresponding weather strip applied to said parting strip and being angle-shape in cross section, one portion thereof extending crosswise of the sash into said stile-groove and overlying the inner face of said first-named weather strip, said companion weather strips acting to prevent the stiles falling inwardly toward each other when the sash is swung inwardly.

6. A window of the character described, comprising a frame, stiles guided for vertical movement in the opposite sides of said frame, a sash pivotally connected at its lower end to said stiles, the latter and the sash meet ing in a rabbet joint, weather strips applied to the opposing outside portions of the rabbet-jointed faces of the sash and the stiles and extending the full length of these parts,

sash and arranged to jointly engage the interfitted parts of said coupling elements for holding the sash in such position, and means functioning as a combined weather-proof joint and a holding means for preventing the stiles falling inwardly when the sash is swung laterally, consisting of upright strips disposed in overlying relation transversely of the sash and applied to the outer corner edges of the stiles and to the adjoining portions of the window frame, said strips conj ointly serving as guides for the sash and resisting sidewise displacement thereof.

GEORGE A. LUNZ.

JOHN L. FEYL.

coupling elements adjacent the upper end of. v

the sash and the stiles and disposed on the inside rabbet-joined faces thereof, said coupling elements having parts arranged to interfit with each other in the normal closed position of the sash, and a locking device applied to the sash and arranged to jointly engage the interfitted parts of said coupling elements for holding the sash in such position.

7 A window of the character described, comprising a frame, stiles guided for vertical movement in the opposite sides ofsaid frame, a sash pivotally connected at its lower end to said stiles, the latter and the sash meeting in a rabbet joint, weather strips applied to the opposing outside portions of the rabbetjointed faces of the sash and the stiles and extending the full length of these parts, coupling elements adjacent the upper end of the sash and the stiles and disposed on the inside rabbet-jointed faces thereof, said coupling elements having parts arranged to interiit with each other in the normal closed position of the sash, a locking device applied to the 

